For the virtual world of Auroa56z, our level used the computer game 'Mine craft', but of course the whole prospect of the task is not just about the game.
We kept in mind that this was still about creating a glorious, polution-free planet, and so we used the most sustainable building materials to make machinery, buildings and farms environmentally friendly and yet strong enough to last a lifetime.

I have mainly used Iron and stone to build strong constructions for my district, Industry, for they are strong and sustainable so they wont decay or collapse. (and they are environmentally friendly)

Using Minecraft, I have created multiple structures in the most suitable areas: (for instance, The solar panels are in the desert because of all the heat and sunlight in that area)

My personal constructions are:
*Wind turbines (2)
*A nuclear power plant (based in the desert in case of any troubles)
*Solar panels (6)
*A dam
*Factories/Crafting areas (2)
*Underwater construction center
*A Mine (with working mine cart transportation system)

Examples:
(Due to issues with my computer, not all screen shots could be put on this page)

Today I have added a power plant for the industrial district in the desert.
Since I could not actually generate any power from it, I had to pretend some lava was actually the power source inside.
Just incase, I have added some sign saying: DANGER: POWER PLANT, Be carefull:
Power Plant.png
Also, I have made a little crafting/smelting area for people who need to make things for their own districts:
Screen shot 2012-11-29 at 10.22.41 AM.png